Power producers now sell electricity to distant utilities, putting far more strains on the grid.
VaxGen announced "encouraging" findings on May 29, suggesting that its AIDSvax vaccine stimulated an immune response to more strains of H.I.V. than was initially expected.
As more strains of TB become drug-resistant and as our world continues to globalize, we must learn from past epidemics to prevent this growing one.
Dr. Ristaino said more strains of the blight needed to be sampled worldwide to help pinpoint the origin of the one she had found in the herbarium samples.
Of those that responded, more strains had shorter life spans than had longer ones when they were given less food.
They discovered more strains than they had ever imagined — as many as a thousand bacterial strains on each person.
Algeria, as well as Venezuela, favors more cuts, but the most powerful member, Saudi Arabia, is wary of putting more strains on customers whose economies are deep in recession.
"I'll be adding six more strains when I plant this fall," said Mr. Rapport, who is the owner and sole employee of his garlic farm and mail-order business.
SG Biofuels has gone back to Central America, where the plant originated, to seek out more strains with favorable characteristics for genetic manipulation.
In the current downturn, the Economic Observer newspaper recently reported, banks are aggressively calling in loans, leading to even more strains for many small firms.
The heated concrete exhibits more strains in the cyclic loading.
